US3301636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-caking caustic soda
Assignee: Diversey Wyandotte Corp
•
Filing: 1963-12-24
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Granted: 1967-01-31
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Expires: 1983-12-24
Abstract
No abstract record available.
Inventors
- 👤 Joseph V Otrhalek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:01
CPC Classifications
C; C01; C01D; C01D1/00; C01D1/04; C01D1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
THE METHOD OF REDUCING THE HYGROSCOPIC PROPERTIES OF SODIUM HYDROXIDE WHICH COMPRISES COATING THE HYDROXIDE WITH MATERIAL SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL SALTS OF TRIGLYCOLLAMIC ACID, ALKALI METAL CARBOXYMETHYLCELLULOSE, AND MIXTURES OF THE FOREGOING.
Claim 2
Independent Claim
38 words
THE METHOD OF REDUCING THE HYGROSCOPIC PROPERTIES OF SODIUM HYDROXIDE WHICH COMPRISES COATING THE HYDROXIDE WITH MATERIAL SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL SALTS OF TRIGLYCOLLAMIC ACID, ALKALI METAL CARBOXYMETHYLCELLULOSE, AND MIXTURES OF THE FOREGOING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |